The Holographic Stereogram

Engineering;hologram;stereogram

McCrickerd, John Thomas ; George, Nicholas A.

University:California Institute of Technology

Department:Engineering and Applied Science

关键词: Engineering;    hologram;    stereogram;   

Others  :  https://thesis.library.caltech.edu/10129/1/McCrickerd_JT_1969.pdf

美国|英语

来源: Caltech THESIS

【 摘 要 】

The holographic stereogram, a hologram synthesized from ordinarystereoscopic component photographs, is investigated as an alternative to classicalholograms and to previous types of stereograms for three-dimensional perfectimagery. The process is partly holographic in nature, but it provides images ofnaturally illuminated objects, and its application is not limited by the technologyof laser illumination. The pinhole camera stereogram and the fly's eye lensstereogram are also analyzed, since the principles of their operation are similar.Pinhole camera stereogram imagery is shown to have several deficiencies, amongwhich is the necessity for small camera-object distances. The fly's eye lens ismuch superior, but is limited in practice by aberrations, a difficulty which theholographic stereogram overcomes. Also treated are the full-color, the focused type,and the distortionless-scaled holographic stereogram, and optical spatialfiltering of holographic stereogram images.

The achromatically imaged Fresnel zone plate is analyzed as a techniqueof very general applicability which compensates for source incoherency in two-beamtype holographic arrangements. The emphasis is on physical interpretationrather than mathematical formulation. Two simple graphical mnemonics aredeveloped for rapid analytical inspection of the effects of, respectively, temporaland spatial incoherence of the source in any achromatically imaged zone plateor Gabor in-line type holographic system.

The scalar wave function approximation of physical optics is usedthroughout.